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Diffstat (limited to 'source/gameengine/VideoTexture/FilterColor.h')
| -rw-r--r-- | source/gameengine/VideoTexture/FilterColor.h | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/source/gameengine/VideoTexture/FilterColor.h b/source/gameengine/VideoTexture/FilterColor.h new file mode 100644 index 00000000000..b7e52c4521c --- /dev/null +++ b/source/gameengine/VideoTexture/FilterColor.h @@ -0,0 +1,168 @@ +/* $Id$ +----------------------------------------------------------------------------- +This source file is part of blendTex library + +Copyright (c) 2007 The Zdeno Ash Miklas + +This program is free software; you can redistribute it and/or modify it under +the terms of the GNU Lesser General Public License as published by the Free Software +Foundation; either version 2 of the License, or (at your option) any later +version. + +This program is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public License along with +this program; if not, write to the Free Software Foundation, Inc., 59 Temple +Place - Suite 330, Boston, MA 02111-1307, USA, or go to +http://www.gnu.org/copyleft/lesser.txt. +----------------------------------------------------------------------------- +*/ + +#if !defined FILTERCOLOR_H +#define FILTERCOLOR_H + +#include "Common.h" + +#include "FilterBase.h" + + +/// pixel filter for gray scale +class FilterGray : public FilterBase +{ +public: + /// constructor + FilterGray (void) {} + /// destructor + virtual ~FilterGray (void) {} + +protected: + /// filter pixel template, source int buffer + template <class SRC> unsigned int tFilter (SRC src, short x, short y, + short * size, unsigned int pixSize, unsigned int val) + { + // calculate gray value + unsigned int gray = (28 * (VT_B(val)) + 151 * (VT_G(val)) + + 77 * (VT_R(val))) >> 8; + // return gray scale value + VT_R(val) = gray; + VT_G(val) = gray; + VT_B(val) = gray; + return val; + } + + /// virtual filtering function for byte source + virtual unsigned int filter (unsigned char * src, short x, short y, + short * size, unsigned int pixSize, unsigned int val = 0) + { return tFilter(src, x, y, size, pixSize, val); } + /// virtual filtering function for unsigned int source + virtual unsigned int filter (unsigned int * src, short x, short y, + short * size, unsigned int pixSize, unsigned int val = 0) + { return tFilter(src, x, y, size, pixSize, val); } +}; + + +/// type for color matrix +typedef short ColorMatrix[4][5]; + +/// pixel filter for color calculation +class FilterColor : public FilterBase +{ +public: + /// constructor + FilterColor (void); + /// destructor + virtual ~FilterColor (void) {} + + /// get color matrix + ColorMatrix & getMatrix (void) { return m_matrix; } + /// set color matrix + void setMatrix (ColorMatrix & mat); + +protected: + /// color calculation matrix + ColorMatrix m_matrix; + + /// calculate one color component + unsigned char calcColor (unsigned int val, short idx) + { + return (((m_matrix[idx][0] * (VT_R(val)) + m_matrix[idx][1] * (VT_G(val)) + + m_matrix[idx][2] * (VT_B(val)) + m_matrix[idx][3] * (VT_A(val)) + + m_matrix[idx][4]) >> 8) & 0xFF); + } + + /// filter pixel template, source int buffer + template <class SRC> unsigned int tFilter (SRC src, short x, short y, + short * size, unsigned int pixSize, unsigned int val) + { + // return calculated color + int color; + VT_RGBA(color, calcColor(val, 0), calcColor(val, 1), calcColor(val, 2), calcColor(val, 3)); + return color; + } + + /// virtual filtering function for byte source + virtual unsigned int filter (unsigned char * src, short x, short y, + short * size, unsigned int pixSize, unsigned int val = 0) + { return tFilter(src, x, y, size, pixSize, val); } + /// virtual filtering function for unsigned int source + virtual unsigned int filter (unsigned int * src, short x, short y, + short * size, unsigned int pixSize, unsigned int val = 0) + { return tFilter(src, x, y, size, pixSize, val); } +}; + + +/// type for color levels +typedef unsigned short ColorLevel[4][3]; + +/// pixel filter for color calculation +class FilterLevel : public FilterBase +{ +public: + /// constructor + FilterLevel (void); + /// destructor + virtual ~FilterLevel (void) {} + + /// get color matrix + ColorLevel & getLevels (void) { return levels; } + /// set color matrix + void setLevels (ColorLevel & lev); + +protected: + /// color calculation matrix + ColorLevel levels; + + /// calculate one color component + unsigned int calcColor (unsigned int val, short idx) + { + unsigned int col = VT_C(val,idx);; + if (col <= levels[idx][0]) col = 0; + else if (col >= levels[idx][1]) col = 0xFF; + else col = (((col - levels[idx][0]) << 8) / levels[idx][2]) & 0xFF; + return col; + } + + /// filter pixel template, source int buffer + template <class SRC> unsigned int tFilter (SRC src, short x, short y, + short * size, unsigned int pixSize, unsigned int val) + { + // return calculated color + int color; + VT_RGBA(color, calcColor(val, 0), calcColor(val, 1), calcColor(val, 2), calcColor(val, 3)); + return color; + } + + /// virtual filtering function for byte source + virtual unsigned int filter (unsigned char * src, short x, short y, + short * size, unsigned int pixSize, unsigned int val = 0) + { return tFilter(src, x, y, size, pixSize, val); } + /// virtual filtering function for unsigned int source + virtual unsigned int filter (unsigned int * src, short x, short y, + short * size, unsigned int pixSize, unsigned int val = 0) + { return tFilter(src, x, y, size, pixSize, val); } +}; + + +#endif |